Attachment to ruling-machines



UNITED STATES Pirreivrrl OFFICE.

I. B. BLAIR, 'OF PHILADELPHIA, PENNSYLVANIA.

ATTACHMENT To nume-MACHINES.

Specilieation forming part of Letters Patent No. 23,152, dated March S,1859.

To all whom, it may concern:

Be it known that I, I. B. BLAIR, of Philadel phia, in the countyot'Philadelphia and State of Pennsylvania,have invented a new anduselii'ul Auxiliary Attachment to Ruling-Machines for Ruling Paper; andI do hereby declare that the following is a full, clear, and exactdescrip-` tion of the construction and operation of the same, referencebeing had to the annexed drawings, making a part of this specification,in

l which- Diagram l is an illustration ot' the princi ple in one of itssimplest forms of application. Diagrams 2 and 3 are illustrations of theprinciple in other forms of application and Figure lis a perspectiveview of a machine constructed for the purpose of raising the pens fromthe paper, and this operation is usually done by hand. The principles ofthe ruling-machine as thus far described in this diagram are oldn andwell known, and I therefore disclaim them; but my invention will bemanifest by afurther description ofthe diagram, as follows Instead ofmoving the pens in the usual way, I place an electro-magnet near thelever L and on the lever fasten the armature A. A circuitbrake, r d, isplaced in a suitable position for the paper 'c to strike as it passes inthe direction of the arrow. The magnet is connected with the battery Z`by a circuit, which passes through the circuit-brake r d. In thisposition the circuit is closed and the magnet holds the end of the leverL down, and the pens are con sequently held oit the paper but when thepaper c shall strike the lower point of i' it will force the top fromthe point of d, thus break* ing the circuit, and the magnet will let gothe lever, permittingthe pens to fall upon thc paper.

Diagram 2 shows the magnet not applied d1-n rectly to the lever, butmade to revolve by means of a pulley, l), to the cylinder Q, by a cordor band. The poles kof the magnet are seen at M M. A cam, C, with anarmature at= tached, is hung upon the same shaft with the pulley andmagnet, but left free to move or be at rest. Upon this cam the lever Lrests. A short electrical circuit is made from the battery Z to thecircuit-brake r d, and thence hack to l'the battery. Another circuit ismade, involving the magnet, which makes the latter circuit the longest..By a well-known law of electricity the fluid will'pass through theshortest circuit, avoiding the longer one. It can now be seen that whenthe ruling-machine is in motion the magnet will continually revolve, andwhen the paper shall break the short circuit at the embedded in the endof the cylinder, with the poles in proximity to the cam C, 4upon whichthe lever L rests. The magnet revolving with the cylinder will seizehold ot' or release the cam in accordance with the breaking or closin gof the electrical circuit by the paper.

I will now proceed to describe Figs. l and 2, which represent a machineconstructed on the plan of Diagram 2. y

F F is a frame supporting the works, and to be secured onto theframe ofthe ruling-machine by the screws un. M M M is an electro-magnet. S S isa shaft on which the magnet revolves. P is a pulley into which the polesof the magnet are inserted.. Avis the armature of the magnet, made inthe form of a disk and of soft iron. It is hung on the shaft S S, and isfree to revolve concentricaliy with the pulley I-I H is a hub, servingto keep the armature in a steady position, and also to sustain one ormore cams.

C is a cam, which is keptin its place against a shoulder on the hubbythe set-nut n', and

the armature, with hub and cam, is kept in D is a bar supportingthccircuitbrake r d,

and, as the connection between the circnitl cuit. The other pole of thebattery must be brake and the mainapparatus needs only be aconducting-wire, the bar maybe either directly attached to the apparatusor to any part ofthe ruling-machine that will permit the circuito1 d toreach a position for the paper to `act upon it. In attaching theapparatus to the ruling-inachine these two conditions, in reference toposition, must be followed, iirst, whether placed on the horizontal railor on the upright post of the frame R R, as seen in Diagram 2, theposition must be such that the pulleycan have connection by a cord withone ofthe rollers of the ruling-machine; secondly, it must bepracticable to extend a level from the pen-beam to the cam. Having'madethe attachment and placed the circuit-brake at the proper place forthepaper to strike, thc electrical connection will be made as follows: Thewire from one pole of the battery must be attached to the screw-post l,which is insulated and reaches through to the insulated metallic band I.Upon this band one end of the helix presses and plays around upon it asthe magnet revolves. The other end of the helix is in connection withthe magnet,

making the apparatus itself' a part of the circonnected to thescrew-poste, thus completing the magnet-circus' t. Another will be madefrom the battery through the circuit-brake, when the whole will be readyfor operation in the following manner: The machine being in motion, andthe magnet revolving the paper is fed in the usual manner into themachine, and when it is carried up so as to strike against the bra-ke r,the circuit will be broken and the magnet will seize the armature A,which will immediately revolve, carrying the cam with it, and thusoperating the lever and pen -beam.

What I claim as my invention is- The application of one or more magnets(electro-magnets) to any ruling-machine for ruling paper in such mannerthat the magnets shall, either directly or indirectly, be made to conAtrol tile operations of the pens through the agency of the paper inbreaking, closing, or changing the circuit of electricity.

I. B. BLAIR.

